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Soft halogen-free flame-retardant cable material

A technology of flame-retardant cable materials and inorganic flame retardants, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of unsuitable cables and increased hardness of cables, and achieve the effect of improving flexibility and expanding the scope of use

Active Publication Date: 2012-08-15
SUZHOU MITAC PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When polyolefins are used in wires and cables, in order to increase their flame retardancy, polyolefin halogen-free flame-retardant cable materials will be filled with a large amount of inorganic flame-retardant materials, such as magnesium hydroxide, aluminum hydroxide, etc. for flame retardancy, However, when filling a large amount of inorganic flame retardant materials, the hardness of the cable material will increase, which is not suitable for occasions where soft cables are required.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Take various additive components, in this embodiment, polyolefin resin adopts ethylene-vinyl acetate copolymer, thermoplastic elastomer adopts styrene thermoplastic elastomer, extender oil adopts paraffin oil, compatibilizer adopts POE-g-MAH, Magnesium hydroxide is used as the inorganic flame retardant, zinc borate is used as the synergistic flame retardant, EBS is used as the lubricant, silane coupling agent KH172 is used as the coupling agent, and antioxidant 1010 is used as the antioxidant. To blend:

[0050] Ethylene-vinyl acetate copolymer 23 parts

[0051] Styrene thermoplastic elastomer 5 parts

[0052] 5 parts paraffin oil

[0053] POE-g-MAH 3.5 parts

[0054] Magnesium hydroxide 57 parts

[0055] Zinc borate 3.5 parts

[0056] 2 copies of EBS

[0057] KH172 0.5 parts

[0058] Antioxidant 1010 0.5 parts

[0059] Then the blended material is mixed and granulated by an extruder, and the resulting mixed and granulated product is made into a finished product...

Embodiment 2

[0063] Take various additive components, in this embodiment, polyolefin resin adopts ethylene-vinyl acetate copolymer, thermoplastic elastomer adopts styrene thermoplastic elastomer, extender oil adopts paraffin oil, compatibilizer adopts POE-g-MAH, The inorganic flame retardant is a mixture of magnesium hydroxide and aluminum hydroxide, the synergistic flame retardant is zinc borate, the lubricant is EBS, the coupling agent is silane coupling agent KH172, the antioxidant is antioxidant 1010, press All raw materials are blended according to the composition formula:

[0064] Ethylene-octene copolymer 31 parts

[0065] Styrene thermoplastic elastomer 5 parts

[0066] 5 parts paraffin oil

[0067] POE-g-MAH 3 parts

[0068] Magnesium hydroxide 25 parts

[0069] Aluminum hydroxide 25 parts

[0070] 3 parts zinc borate

[0071] 2 copies of EBS

[0072] KH172 0.5 parts

[0073] Antioxidant 1010 0.5 parts

[0074] Then the blended material is mixed and granulated by an extru...

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Abstract

A soft halogen-free flame-retardant cable material comprises the following components by weight: 20-40 parts of polyolefin resin, 1-10 parts of thermoplastic elastomers, 1-10 parts of filling oil, 2-10 parts of compatilizers, 40-60 parts of inorganic flame retardants, 3-10 parts of synergistic flame retardants, 1-5 parts of lubricants, 0.4-1.2 parts of coupling agents, and 0.1-0.5 parts of anti-oxidants. By blending of the low-hardness thermoplastic elastomer and the polyolefin resin, the soft halogen-free flame-retardant cable material of the invention not only has maintained good mechanical properties, but also has greatly improved softness, and the application range of the cable material is expanded.

Description

【Technical field】 [0001] The invention relates to a cable material, in particular to a soft halogen-free flame-retardant cable material. 【Background technique】 [0002] Because polyolefin has the characteristics of low relative density, chemical resistance, good water resistance, good mechanical strength, electrical insulation, etc., polyolefin compositions with elasticity and good thermoplastic properties have been widely used in various fields. For example, it can be used in films, pipes, plates, various shaped products, wires and cables, etc. [0003] When polyolefin is used in wires and cables, in order to increase its flame retardancy, polyolefin halogen-free flame-retardant cable materials will be filled with a large amount of inorganic flame-retardant materials, such as magnesium hydroxide, aluminum hydroxide, etc. for flame retardancy, However, when a large amount of inorganic flame-retardant materials are filled, the hardness of the cable material increases, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L25/04C08L23/06C08L51/06C08K13/02C08K3/22C08K3/38C08K3/02H01B7/295
Inventor 吴彤
Owner SUZHOU MITAC PRECISION TECH